nar-nar, adj. — Green’s Dictionary of Slang

nar-nar adj.

[? late 19C nana (from Emile Zola’s supposedly indecent novel Nana (1880)) outrageous, indecent or nana n. (4)]

(Aus.) of a man, over-dressed, often effeminately so.

1952

C. MacInnes June in Her Spring n.p.: You’re not gojng to wear those nar-nar shoes to the gymhkana, are you?